Identify salts, acids and bases applied in the following:
5.3.1 Used as an electrolyte in lead-car batteries (1)
5.3.2 Used as a cleaning agent (1)
5.3.3 Used in drain and oven cleaners (1)
5.3.4 Used in antacids to relieve indigestion
1. Lead car batteries comprises of PbO2 (an amphoteric oxide), PbSO4 (a lead salt) and H2SO4 (an acid).
2. In cleaning agents, ammonia, sodium hypochlorite and sodium hydroxide (bases), and citric acid or vinegar (acids) are used.
3. Strong acid like H2SO4 or strong base like NaOH is used to unclogged the drains. Sodium hydroxide is used as oven cleaner.
4. Magnesium hydroxide, Mg(OH)2 is a base used as an antacid to relieve indigestion. Indigestion is caused by high amount of acid produced in the stomach. This acid can be neutralized by using mild base.
Identify salts, acids and bases applied in the following: 5.3.1 Used as an electrolyte in lead-car...
QUESTION 5 [20] 5.1 What does pH measure? (1) 5.2 Differentiate between an acid and a base in terms of their pH values. (2) 5.3 Identify salts, acids and bases applied in the following: 5.3.1 Used as an electrolyte in lead-car batteries (1) 5.3.2 Used as a cleaning agent (1) 5.3.3 Used in drain and oven cleaners (1) 5.3.4 Used in antacids to relieve indigestion (1) 5.4 Complete the following table for bases and acids by giving the answers for...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...